A simple diagram of a DNA molecule is shown below. Which of the following is represented by X?
(photo above)

Answers

Answer 1

Answer:

From the diagram X = base pairs

Explanation:

Genetic information stored within DNA is used for growth, reproduction, and cell repair. DNA, deoxyribonucleic acids, are long-chain, helical macromolecules made of specific sequences of covalently bonded monomers called nucleotides.

Nucleotides comprise:

a 5-Carbon deoxyribose sugar, one nitrogenous base (adenine, guanine thymine, and cytosine) and a phosphate group.

Nitrogenous bases cause nucleotides to form hydrogen bonds with other nucleotides as base-pairs. The four types of bases each make the nucleotides  Thymine and Cytosine (pyrimidine bases) along with Guanine,  and Adenine, (purine bases). In base-pair formation, Adenine forms double bonds with Thymine, and cytosine forms triple bonds with guanine.

A Simple Diagram Of A DNA Molecule Is Shown Below. Which Of The Following Is Represented By X? (photo
A Simple Diagram Of A DNA Molecule Is Shown Below. Which Of The Following Is Represented By X? (photo
A Simple Diagram Of A DNA Molecule Is Shown Below. Which Of The Following Is Represented By X? (photo

Related Questions

Which of the following statements is true regarding electromagnetism?

All wires are electromagnetic.

Only wires carrying current are electromagnetic.

Only iron wires are electromagnetic.

Only copper wires are electromagnetic.

Answers

Answer:

Only iron wires are electromagnetic.

Only wires carrying current are electromagnetic.

Which career combines DNA technology and forensics? pharmaceuticals paternity testing environmental studies genetics

Answers

Answer:

B. Paternity

Explanation:

Edge 2020

The career that combines DNA technology and forensics is paternity testing. The correct option is B.

What is paternity testing?

DNA testing examines an individual's DNA banding patterns to determine the identity or mutations of a specific gene.

Paternity testing is a type of DNA testing that is used to determine paternity and the true nature of a relationship.

The lab compares tissue samples from the mother, the child, and the man to determine what unique characteristics known as genetic markers the child shares with the mother and the man who may be the father.

The chromosomes that determine the gender of the baby (X and Y chromosomes). The mother's egg typically contributes an X chromosome, while the father's sperm contributes either an X or a Y chromosome.

These tests are extremely accurate in determining whether a man is the biological father of a child.

Thus, the correct option is B.

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EASY 10 POINTS

Why do plant cells need chloroplasts?

Answers

Answer:

Chloroplasts are organelles found in plant cells and eukaryotic algae that conduct photosynthesis. Chloroplasts absorb sunlight and use it in conjunction with water and carbon dioxide gas to produce food for the plant. In this respect they are similar to mitochondria, but are found only in plants and protista.

Explanation:

mark BRAINLIST!

thx

which structure makes proteins using instructions from the nucleus

Answers

Answer:

ribosomes

Explanation:

Ribosomes are small particles of RNA and protein found throughout the cytoplasm. Proteins are assembled on ribosomes. The nucleus gives coded instructions to the ribosomes, so they know what proteins to build.

Alexis is using models of the cell membrane to compare the types of cellular transport. One

model shows a molecule entering through a protein pump. Which ope of cell transport is
being modeled?
A
diffusion because protein pumps are needed to move substances from a higher
concentration to a lower concentration
8
endocytosis, because protein pumps transport substances that are too large to
pass through the cell membrane
active transport, because protein pumps are needed to move substances against a
concentration difference
D
osmosis, because protein pumps allow water to cross the cell membrane

Answers

Answer:

C. active transport, because protein pumps are needed to move substances against a concentration difference

Explanation:

There are two major types of transport in living cells namely: passive transport and active transport. The passive transport moves molecules down a concentration gradient and hence, do not need energy (ATP) to occur. However, on the other hand, ACTIVE TRANSPORT moves substances against their concentration gradient, thus, require energy input.

Active transport makes use of PROTEIN PUMPS to achieve this process. Hence, in this case where Alexis is using models of the cell membrane to compare the types of cellular transport. The model that shows a molecule entering through a protein pump is modelling ACTIVE TRANSPORT.

What role does intraspecies competition play in natural selection?

A. There is competition within a species for resources, and only some individuals will survive.

B. There is competition within a species for resources, and only the single most fit individual will survive. ( ITS NOT B)

C. There is competition between species for resources, and only one species will survive.

D. There is competition between species for resources, and only one individual per species will survive. ( I don't think it's this one...)

Answers

D there is competition between species

Which of these is a characteristic of sexual reproduction?A)It takes place in all cells of the body.B)It forms exact copies of the parent cell.C)It results in offspring with genetic variation.D)It requires only one parent to form a daughter cell.

Answers

Answer/Explanation:

It results in offspring with genetic variation. 2 different mates must be used in sexual reproduction. This is because each person is different since cells are produced and combined differently in the original offsprings. If the two adults were exactly the same, the offspring would have the exact same cell traits. Likewise will be done for the offspring of the two adults. The genes may be similiar to the ones of the adults, but since combined it will not be an exact replica. In the long run sexual reproduction will result in an offspring with slightly different traits or genetic variation.

brainllst


Read the excerpt from "Bone Detective," by Lorraine Jean Hopping. While the dentist worked on the tiger’s teeth, Diane made an alginate impression of one of its huge paws. Then, the dentist used two cupped hands to pull the tongue out of the big cat’s mouth. The heavily muscled organ was almost as long as her foot. With the dentist still holding the tiger tongue in both hands, Diane quickly went to work. The pink surface was rough, like sandpaper, but floppy and wet. She coated the top with alginate and waited for it to set. Her 15 minutes were almost up. The tiger, so calm and soft, would soon wake up and be dangerous again. Slowly and carefully, Diane peeled off the soft impression to avoid tearing it. Based on this excerpt, what is the author’s attitude toward Diane France? The author feels Diane is rough and impatient in her work with the tiger. The author feels Diane is skillful and careful in her work with the tiger. The author feels Diane is anxious and distracted in her work with the tiger. The author feels Diane is light-hearted and humorous in her work with the tiger.

Answers

Answer:

2nd oneㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ

it says carefully she helps the tigerㅤㅤㅤ

Answer:

The answer is B. The author feels Diane is skillful and careful in her work with the tiger.

Explanation:

took the test on edge

Can someone help me with this question pls (8th grade science)

Answers

Answer:

C

Explanation:

The exerpt states that movements in the Earth's crust (unbalance) causes Earthquakes. When it's balanced, there is no plate movement.

Answer: c

Explanation: if there is no plate movement that means that there is a balanced force there is nothing that is disrupting it. but if there's an earthquake in that means that there are unbalanced forces in that they cause an earthquake. a force is balanced if the two individual forces are of equal magnitude and of the opposite direction. And an object is said to be acted upon by an unbalanced force when there is an individual force that is not being balanced by a force of equal magnitude and in the opposite direction.

The giant african land snail is an invasive species that is also the largest snail ons earth what is most likely consequence of introducing this invasive species into a stable ecosystem?

a. The native snail species will change their diet therefore destabilizing the ecosystem.


b. The native snail species will move to another area allowing the ecosystem to remain stable.


c. The native snail species will share their food with the invasive species stabilizing the ecosystem.


d. The native snail species will compete for resources with the invasive species and destabilize the ecosystem.

Answers

It is C because it feeds voraciously and is a factor for plant pathogen’s, causing survey damage to agriculture crops native plants. It completes with a native snail taxa, is a nuisance pest of urban areas, and spreads human disease. The snail is listed as one of the top 100 invasive species in the world.

What is a component of amino acid not contained in starch
A. Amino acids contain hydrogen.
B. Amino acids contain oxygen.
C. Amino acids contain carbon.
D. Amino acids contain nitrogen.

Answers

Answer:

D. Amino acids contain nitrogen

Explanation:

...

What threatens the existence of a chimpanzee species?

Answers

Answer:

The primary threats to chimpanzees are habitat destruction, hunting, and disease. The increasing human population is encroaching ever deeper into even protected areas of chimpanzee habitats, and large scale logging is now a major threat to the forest primates of Africa.

Explanation:

Answer:

* Habitat destruction

* Hunting

* Disease

what position will kamala harris hold on sunday 20,2021

Answers

Answer:

Vice President?

Explanation:

Answer:

vice president she the first black woman,indian and woman to be vice president her innaguration was yesterday

Explanation:

List three ways in which a sperm cell differs from other cells in the
human body

Answers

A sperm cell is the smallest human cells. An egg cell and a sperm are each other opposites

4
If Jennifer wanted to grow her hair out without fear of it breaking or becoming damaged, what macromolecules should she increase in her daily diet

Answers

Answer:

I'm guessing proteins because hair is made out of keratin and keratin is a protein.

Explanation:

Probably proteins I guess...

PLSS HELP!!

1. cellular respiration produces

A. cellulose
B. oxygen
C. ATP
D. glucose

2. to produce starch, glucose molecules bond together through

A. photosynthesis
B. cellular respiration
C. dehydration synthesis
D. nucleotides

3. by which process does yeast produce the carbon dioxide responsible for bread rising?

A. photosynthesis
B. glycolysis
C. cellular respiration
D. dehydration synthesis

4. what is a component of amino acid not contained in starch?

A. amino acids contain carbon
B. amino acids contain oxygen
C. amino acids contains hydrogen
D. amino acids contain nitrogen

5. which two processes provide the glucose and nitrogen used to form amino acids in plants?

A. photosynthesis and nitrate absorption
B. cellular respiration and the citric acid cycle
C. photosynthesis and dehydration synthesis
D. glycolysis and nitrate absorption

Answers

Answer:

1. ATP

Explanation:

Cellular respiration produces ATP. Thus, the correct option is C. To produce starch, glucose molecules bond together through dehydration synthesis. Thus, the correct option is C.The process through which yeast produces the carbon dioxide responsible for bread rising is known as glycolysis. Thus, the correct option is B. A component of amino acid that is not contained in starch is nitrogen. Thus, the correct option is D. Photosynthesis and nitrate absorption are the two processes that provide the glucose and nitrogen used to form amino acids in plants. Thus, the correct option is A.

What is Cellular respiration?

Cellular respiration may be defined as the chemical process of breakdown of food in the cell with the liberation of energy in the form of ATP.

Photosynthesis is a chemical process through which green plants most photosynthetic algae synthesize their own food in the form of glucose. While nitrate absorption is the process through which nitrogen in the soil is significantly absorbed by the root of plants in form of nitrates.

Fermentation is initiated with the process of glycolysis, but it does not involve the upcoming two stages of aerobic cellular respiration such as the Krebs cycle and oxidative phosphorylation.

Therefore, each of the above questions is well described above.

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Why does calcium concentration matter to a cell?

Answers

Answer:

HOPE IT MAY HELP YOU

Explanation:

Calcium-based signaling is used in many cellular and neuronal processes to initiate rapid responses to extracellular signals. Cells therefore maintain tight control over intracellular Ca2+ levels, using a variety of channels and pumps.

Answer:

to answer your question it is

Explanation:

Calcium-based signaling is used in many cellular and neuronal processes to initiate rapid responses to extracellular signals. Cells therefore maintain tight control over intracellular Ca2+ levels, using a variety of channels and pumps. ... neuron

2/3 divided by 1/6

Answers

Answer:

4

Explanation:

Need help ASAP

The Crust of the earth is mostly made of.......

a.Fe and Ni
b. Silica
c. Magnesium
d. Aluminum

Answers

Answer:

b. silica

Explanation:

!!

Explanation:

A crust is the outermost layer of a planet. The crust of the Earth is composed of a great variety of igneous, metamorphic, and sedimentary rocks. The crust is underlain by the mantle. The upper part of the mantle is composed mostly of peridotite, a rock denser than rocks common in the overlying crust.

What is the role of adenosine triphosphate (ATP) within a cell?

A) Release carbon dioxide
B) Biological molecule that stores energy
C) Use glucose
D) Controls chemical reactions ​

Answers

Answer:

Its B. Biological molecule that stores energy

The answer is B.
Reason: ATP is essentially energy. It is a molecule that stores said energy from the cell.

Please help me need this before 8:00am
The questuon is in the picture

Answers

Answer:

I think the answer is D.

Explanation:

I think this because I just did the Periodic Table in school, also they are group by the same color by physical and chemical properties.

can someone quickly answer this i need to finish so many other things lol

Answers

Explanation:

A eukaryotic cell contains membrane-bound organelles such as a nucleus, mitochondria, and an endoplasmic reticulum. Organisms based on the eukaryotic cell include protozoa, fungi, plants, and animals. These organisms are grouped into the biological domain Eukaryota.

Any organism which has a closed membrane for a nucleas is a eukaryotic cell.

(organisms who dont have a nuclear memebrane is called prokaryotic cell)

We have eukaryotic cells as we have nuclear membrane but a bactaria(a prokaryotic cell) doesnt have a nuclear memebrane and all of its nuclear substances are floating insdie it getting jumbled up.

During a murder investigation, the medical examiner tests the contents of the
victim's stomach to try to identify their last meal and establish a connection to a
suspect. The contents tested using Lugol's iodine turned a dark purple color
which indicates the presence of starch. This test indicates which of these
macromolecules was present in the victim's last meal? *

A. Proteins
B. Carbohydrates
C. Lipids
D. Nucleic Acid

Answers

D bucolic acid is history and rain stomach

What is the correct order of a food chain containing the following organisms: quail (bird), desert shrub, coyote, snake?

Answers

Answer:

desert shrub - quail - snake - coyote

Explanation:

the quail bird eats the desert shrub, the snake eats the quail, the coyote (a-pex predator in this chain) eats the snake.

A red blood cell would burst if placed in a(n) ___ solution with no cell wall.

A. Isotonic

B. Hypertonic

C. Hypotonic

Please help! 10 points

Answers

Answer:B

Explanation:

A fungus cell is a prokaryotic cell. True or false?

Answers

A fungus cell is a eukaryotes so it’s false

3. Forces of evolution include

a. DNA mutations
b. lack of migration
c. random mating
d. a large population size

Answers

Answer:

A. DNA Mutations

Explanation:

it evolves them in ways that even random mating cannot control

Answer:

A large population size:: summary population size is the number of individuals in a population. population density is the average number of individuals per unit of area or volume. the pattern of spacing of individuals in a population may be affected by the characteristics of a species or its environment.

PLEASE ANSWER THIS QUICK QUESTION!!! ASAP! WORTH A LOT OF POINTS

What do all tide pool creatures have in common?
Or: What are the main features that all tide pool creatures have in common?

Answers

Explanation:

While these small basins at the ocean's edge typically range from mere inches to a few feet deep and a few feet across, they are packed with sturdy sea life such as snails, barnacles, mussels, anemones, urchins, sea stars, crustaceans, seaweed, and small fish.

Most enzymes are proteins. Many cells make and use an enzyme called catalase to facilitate the decomposition of hydrogen peroxide (H2O2). The products of the decomposition are hydrogen (H2) and oxygen (O2). Stephanie is investigating the structure and function of catalase, and she is comparing catalase to other proteins. What can Stephanie predict will distinguish the structure of catalase from the structures of the other proteins she is studying? A. many regions made entirely of hydrogen and oxygen B. the chemical properties of the peptide bonds C. the types of amino acids it contains D. the sequence of amino acids it contains

Answers

Answer:

The correct answer is - B. the chemical properties of the peptide bonds.

Explanation:

The difference between the structures of catalase from other proteins depends on the chemical properties of the peptide bonds present in between the amino acids which decide the pH and temperature by their disruption. These bonds present between two alpha-amino acids when carboxyl of one amino acid interacts with the amino group of the other to form an amide-type covalent bond.

I NEED THE ANSWER ASAP

which particles do plants absorb to obtain energy?  a. photons  b. electrons  c. atoms  d. molecules

Answers

Answ

i think its a

Explanation:

Answer:

It's a. photons(light energy)

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